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Finding the Fourth Proportional to 18,992.88, 26,210.25 and 10,609.38

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Solution

The fourth proportional to 18,992.88, 26,210.25 and 10,609.38 is: 14,640.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,992.88 : 26,210.25 = 10,609.38 : x
  2. Step 2: Convert to fraction form
    18,992.88/26,210.25 = 10,609.38/x
  3. Step 3: Cross multiply
    18,992.88x = 26,210.25 × 10,609.38
  4. Step 4: Simplify right side
    18,992.88x = 278,074,502.15
  5. Step 5: Solve for x
    x = 278,074,502.15/18,992.88
  6. Step 6: Final answer
    x = 14,640.99

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.